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Paper Abstract and Keywords
Presentation 2023-07-20 11:50
[Short Paper] Estimation Method of Building Material and Structure Parameters based on Free-Space Method
Kentaro Saito, CheChia Kang, Jun-ichi Takada (Tokyo Tech.) WBS2023-15 SRW2023-13 MICT2023-12
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, various kinds of information and communications technology (ICT) systems that use wireless communication technologies have been developed and utilized as our social infrastructures. Furthermore, the cyber-physical system (CPS) technology attracts the interest of researchers to speed up and cut the cost of system development. In the CPS, most of the system development can be done in the virtual environment by importing the physical environment information into the wireless emulator and reproducing the radio propagation characteristics and the wireless communication performance. However, correct environment information, such as the three-dimensional spatial model and its dielectric properties, is necessary for accurate radio propagation simulation. Especially, although the radio wave reflection and penetration characteristics significantly depend on the material thickness as well as the dielectric property, it is unrealistic to destroy the existing buildings to obtain the information. To solve the issue, we proposed the building material and structure parameter estimation method based on the free-space method. In the method, the radio reflection channel is measured by the wideband measurement signal. And the complex permittivity and thickness of the target material are estimated by the maximum likelihood-based algorithm. The experiment was conducted in the university campus, and the material and structure parameters of indoor building materials were estimated. The results showed that the radio wave reflection characteristics changed significantly in the case of transparent materials such as wood walls and glass doors because of the multiple reflections of radio waves inside the materials. Further experiments with various building materials and their utilization for radio propagation simulations are future works.
Keyword (in Japanese) (See Japanese page) 
(in English) Building material parameter / Free-space method / Material permittivity / Material thickness estimation / Millimeter wave band / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 121, SRW2023-13, pp. 13-13, July 2023.
Paper # SRW2023-13 
Date of Issue 2023-07-13 (WBS, SRW, MICT) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF WBS2023-15 SRW2023-13 MICT2023-12

Conference Information
Committee SRW MICT WBS  
Conference Date 2023-07-20 - 2023-07-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata Univ. TOKIMATE 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network, MAC, WBAN, Sensor, mmWave, Medical and Healthcare ICT, Wideband (radio and optical) communications system, etc., Student poster session 
Paper Information
Registration To SRW 
Conference Code 2023-07-SRW-MICT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation Method of Building Material and Structure Parameters based on Free-Space Method 
Sub Title (in English)  
Keyword(1) Building material parameter  
Keyword(2) Free-space method  
Keyword(3) Material permittivity  
Keyword(4) Material thickness estimation  
Keyword(5) Millimeter wave band  
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Keyword(7)  
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1st Author's Name Kentaro Saito  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
2nd Author's Name CheChia Kang  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
3rd Author's Name Jun-ichi Takada  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
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Speaker Author-1 
Date Time 2023-07-20 11:50:00 
Presentation Time 15 minutes 
Registration for SRW 
Paper # WBS2023-15, SRW2023-13, MICT2023-12 
Volume (vol) vol.123 
Number (no) no.120(WBS), no.121(SRW), no.122(MICT) 
Page p.13 
#Pages 1 
Date of Issue 2023-07-13 (WBS, SRW, MICT) 

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